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The Four Generations of War

06-10-2004

Guest Column: The Four Generations of War

By William S. Lind

In my last column, I referenced “the canon,” the seven books which, if read in the correct order, take the reader from the First Generation of modern war through the Second and Third Generations and into the Fourth (“The Two Marine Corps,” DefenseWatch, June 4, 2004). A number of people responded with requests for a description both of the canon and of the Four Generations, so here goes.

The First Generation of modern war began with the Peace of Westphalia in 1648, which ended the Thirty Years War. It also marked the state’s assumption of a monopoly on war; thereafter, war became something waged by states, for raison d’etat, with state armies and navies doing the fighting. The First Generation ran from 1648 to about the time of the American Civil War, and it was characterized, on the whole, by a battlefield of order. The battlefield of order created a military culture of order, which endures to this day.

And there’s the rub. For around the middle of the 19th century, the battlefield of order began to break down. Ever since, state militaries have had to grapple with a growing contradiction between their internal culture of order and the external reality of an increasingly disordered battlefield.

The Second and Third Generations represent two different approaches to that problem. Second Generation war was developed by the French Army during and after World War I, and is best summed up with the French saying, “The artillery conquers, the infantry occupies.” Also known as firepower/attrition warfare, Second Generation war maintained the First Generation culture of order.

Decision-making was centralized and hierarchical; orders were detailed and controlling, to permit synchronization of all arms; time was not particularly important; and success was measured by comparative body counts. Second Generation armed forces focus inward on methods, processes and procedures, prize obedience over initiative (initiative and synchronization are not compatible) and depend on imposed discipline. The American Army and Marine Corps learned Second Generation war from the French during the First World War and still practice it today, with exceptions based on individual commanders.

Third Generation war, also known as maneuver warfare, was developed by the German Army in World War I; by 1918, Blitzkrieg was conceptually complete, lacking only the tanks necessary for operational mobility. The Prussian/German roots of Third Generation war go back earlier, to the Scharnhorst reforms that followed Prussia’s defeat by Napoleon.

One of those reforms changed what was required of a Prussian officer; instead of being responsible for obeying orders, he became responsible for getting the result the situation required regardless of orders (in 19th century war games, it was common for junior Prussian officers to be given problems that could only be solved by disobeying orders). This in turn created a military culture that was focused outward, on the enemy, the situation and the result the situation demanded instead of inward on rules, orders and processes. In effect, Prussia had broken with the First Generation culture of order.

The new Third Generation tactics developed by the Germans in World War I were the first non-linear tactics. On the defense, the objective became sucking the enemy in, then cutting him off, rather than holding a line. On the offensive, the attack flowed like water through the enemy’s defenses, always seeking the weakest point to penetrate, then rolling him up from his own rear forward.

Operationally as well as tactically the goal was usually encirclement. Speed replaced firepower as the most important tool, and dislocation, mental as well as physical, was more important than attrition. Culturally, not only was the German Army outward-focused, it prized initiative over obedience and it depended on self-discipline rather than imposed discipline.

Much of the American military reform movement of the 1970s, 80s and early 90s was an attempt to move the American armed forces from the Second to the Third Generation. While the Marine Corps formally adopted maneuver warfare as doctrine in the 1990s, most of what the Marine Corps does remains Second Generation. The other American services remain almost wholly Second Generation, to the frustration of many junior officers.

Fourth Generation war is the greatest change since the Peace of Westphalia, because it marks the end of the state’s monopoly on war. Once again, as before 1648, many different entities, not states, are fighting war.

They use many different means, including “terrorism” and immigration, not just formal armies. Differences between cultures, not just states, become paramount, and other cultures will not fight the way we fight. All over the world, state militaries are fighting non-state opponents, and almost always, the state is losing. State militaries were designed to fight other state militaries like themselves, and against non-state enemies most of their equipment, tactics and training are useless or counterproductive.

The canon, the list of seven books that lay all this out in detail, will be the subject of my next column.

Guest Contributor William S. Lind, a veteran defense policy analyst, is Director of the Center for Cultural Conservatism at the Free Congress Foundation, where this article originally appeared. He can be reached through the foundation’s mailform. Please send Feedback responses to dwfeedback@yahoo.com.

Interesting article. I'm certainly not an expert in this area, but think the divisions between generations of warefare are not as clearcut as this article states. The Resistance Movements of WWII (Trevor Dupuy devotes an entire volume to this topic in "The Military History of World War II") and the Viet Cong's role in Vietnam seem to fit in more with 4th generation warfare than the other 3 generations.